ArticleGenetics1998
Complex structure of knob DNA on maize chromosome 9. Retrotransposon invasion into heterochromatin.
Article in Genetics, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
50 citing papers in PubMed, 139 citations in OpenAlex.
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- Repetitive sequences and structural chromosome alterations promote intraspecific variations in Zea mays L. karyotype.Scientific reports · 2020Article
- Exploring karyotype diversity of Argentinian Guaraní maize landraces: Relationship among South American maize.PloS one · 2018Article
- Complex characterization of oat (PeerJ · 2018Article
- A refinedJournal of ginseng research · 2017Article
- Maize (Zea mays L.) genome size indicated by 180-bp knob abundance is associated with flowering time.Scientific reports · 2017Article
- TAREAN: a computational tool for identification and characterization of satellite DNA from unassembled short reads.Nucleic acids research · 2017Article
- Meiotic Crossing Over in Maize Knob Heterochromatin.Genetics · 2017Article
- Unbiased K-mer Analysis Reveals Changes in Copy Number of Highly Repetitive Sequences During Maize Domestication and Improvement.Scientific reports · 2017Article
- Molecular, genetic and evolutionary analysis of a paracentric inversion in Arabidopsis thaliana.The Plant journal : for cell and molecular biology · 2016Article
- Transposable elements contribute to activation of maize genes in response to abiotic stress.PLoS genetics · 2015Article
- Tandem repeats derived from centromeric retrotransposons.BMC genomics · 2013Article
- Gamete formation via meiotic nuclear restitution generates fertile amphiploid F1 (oat×maize) plants.Sexual plant reproduction · 2012Article
- Karyotype analysis of Panax ginseng C.A.Meyer, 1843 (Araliaceae) based on rDNA loci and DAPI band distribution.Comparative cytogenetics · 2012Article
- Genetic dissection of maize phenology using an intraspecific introgression library.BMC plant biology · 2011Article
- Addition of individual chromosomes of maize inbreds B73 and Mo17 to oat cultivars Starter and Sun II: maize chromosome retention, transmission, and plant phenotype.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2009Article
- A single molecule scaffold for the maize genome.PLoS genetics · 2009Article
- Tandem organization of StarkB element (22.8 kb) in the maize B chromosome.Molecular genetics and genomics : MGG · 2009Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The recovery of maize (Zea mays L.) chromosome addition lines of oat (Avena sativa L.) from oat x maize crosses enables us to analyze the structure and composition of specific regions, such as knobs, of individual maize chromosomes. A DNA hybridization blot panel of eight individual maize chromosome addition lines revealed that 180-bp repeats found in knobs are present in each of these maize chromosomes, but the copy number varies from approximately 100 to 25, 000. Cosmid clones with knob DNA segments were isolated from a genomic library of an oat-maize chromosome 9 addition line with the help of the 180-bp knob-associated repeated DNA sequence used as a probe. Cloned knob DNA segments revealed a complex organization in which blocks of tandemly arranged 180-bp repeating units are interrupted by insertions of other repeated DNA sequences, mostly represented by individual full size copies of retrotransposable elements. There is an obvious preference for the integration of retrotransposable elements into certain sites (hot spots) of the 180-bp repeat. Sequence microheterogeneity including point mutations and duplications was found in copies of 180-bp repeats. The 180-bp repeats within an array all had the same polarity. Restriction maps constructed for 23 cloned knob DNA fragments revealed the positions of polymorphic sites and sites of integration of insertion elements. Discovery of the interspersion of retrotransposable elements among blocks of tandem repeats in maize and some other organisms suggests that this pattern may be basic to heterochromatin organization for eukaryotes.
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